| 摘要 |
<p>A cooling device for a transformer mounted on an electric vehicle the installation position of which is not limited inside the electric vehicle, and which is non-inflammable and safe. The cooling device includes a cooler (23) of a cooling medium (25) for cooling a transformer (21), and a circulation blower (22) disposed inside a piping (24) connected between the transformer (21) and the cooler (23), for circulating the cooling medium between the transformer and the cooler. The cooling medium (25) is an SF6 gas, the cooler is disposed on the side wall, top wall, or front or rear end wall of the body of an electric vehicle (1) and is cooled by the blower or running wind. Accordingly, the cooling device becomes non-inflammable, the installation spaces of other electric appliances becomes greater, and freedom of design of the installation of the cooler increases. The noise can be reduced by disposing the gas circulation blower inside the transformer tank, and on-site sealing operation of the cooling medium gas can be eliminated by disposing an openable connection portion at an intermediate portion of the cooling medium piping.</p> |
